Surgery – Truss – Pad
Patent
1990-04-30
1992-01-07
Jaworski, Francis
Surgery
Truss
Pad
128916, A61B 800
Patent
active
050781456
ABSTRACT:
An ultrasonic diagnostic device is disclosed in which ultrasonic pulses are transmitted for a subject body in changing the position and direction of a probe, and a plurality of two-dimensional tomographic image signals obtained by detecting the reflected pulses are synthesized to form a three-dimensional image. A signal for identifying the position in three-dimensional coordinates based on the position and direction of the probe at the time of detection is given to individual picture element signals composing in the detected two-dimensional tomographic image. A plurality of two-dimensional tomographic image signals having identified positions in three-dimensional coordinates are obtained by the similar processes to described in the above in changing the position and direction of the probe, and a plurality of the picture element signals having the same coordinates are addition-averaged and are stored in the memory area corresponding to the coordinates in the three-dimensional memory. With the arrangement as described in the above, the three dimensional image can be formed which is not influenced by hardness in the tissue etc.
REFERENCES:
patent: Re30397 (1980-09-01), King
patent: 3222740 (1973-12-01), Hokanson
patent: 4341120 (1982-07-01), Anderson
patent: 4492119 (1985-01-01), Dulopa et al.
Brinkley, J. F. et al., "Ultrasonic Three-Dimensional Imaging and Volume from Sector Scans", UTs in Med and Biol., vol. 4, pp. 317-377.
Jaworski Francis
Nichimen Corporation
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